Window sill



Dec. 28, 1954 J. H. GOODWIN WINDOW sILL Filed Aug. 5, 1951 United States Patent O WINDOW sILL John H. Goodwin, Pittsburgh, Pa., assignor to Overly Manufacturing Company, Greensburg, Pa., a corporation of Pennsylvania Application August 3, 1951, serial No. 240,113

s claims. (c1. 72-9s) This invention relates to window sills. More particnl arly, the invention relates to metal window sills for use with masonry walls and metal sash. i Extruded aluminum sills have been widely accepted in the building industry as satisfactory for the mounting of steel and aluminum sash. Trouble has been experienced with such sills in fastening them securely in brick and other masonry walls. It is important that the sill shall be properly mounted and firmly anchored in the masonry structure because the satisfactory setting and operation of pivoted metal sash depends upon the proper fastening of the sill.

The primary object of the present invention is to provide an aluminum sill, and means for mounting and anchoring the still in masonry Walls.

In some masonry structures, it is necessary to provide sills which are fifty to one hundred feet long so that the sill should be made in several sections. Such long sills' must have each section properly mounted and anchored. Further, the joints between the sections must be watertight to prevent moisture from working into the masonry structure.

Accordingly, another object of the invention is to provide an aluminum sill made up in sections which may be properly mounted and tightly fastened in the masonry structure, and the joints between the sill sections made water-tight.

With these and other objects in view, the invention consists in the improved aluminum window sill as hereinafter illustrated and described and particularly defined in the appended claims.

The various features of the invention are illustrated in the accompanying drawings, in which:

Fig. 1 is a perspective view showing a brick wall with my approved aluminum sill fastened thereon with anchor plates, and illustrating the parts of a joint of a sectional sill;

Figi 2 is a vertical sectional view of the aluminum sill -zllnd tlhe anchor therefor as taken on the line II-II of Fig. 3 is' a vertical sectional view taken on the line III-III of Fig. l showing the joint between sill sections;

Fig. 4 is a vertical sectional view taken on the line IVd-IV of Fig. 3 of the joint between the sill sections; an

Fig. 5 is a vertical sectional view of the sill joint taken on the line V-V of Fig. l.

The sill is preferably an extruded aluminum sill which is provided with flanges extending longitudinally thereof to strengthen the s'ill. Referring to Fig. l, the sill 10 is mounted on top of a brick wall 12 with a front flange 14 downwardly-extending and engaging the front wall of the wall. An upwardly-extending flange 16 for weather sealing a window frame is mounted at the rear of the sill and the sill is mounted on the wall with the rear at a higher elevation than the front thereof to provide a natural drainage for moisture that gets on the sill.

To anchor the sill in the wall, anchor plates 18 are built into the wall which have an outwardly extending flange 20 at the bottom thereof which passes under a brick of a brick wall, or is embedded in a poured concrete wall. The top of the anchor 18 rests on top of the wall and has an upwardly extending tongue 22 projecting out parallel to the front edge of the wall. A rearwardly extending lip 24 is formed on the back of the sill flange 14 a short distance below the lower face of the sill to provide a recess 26 to receive the tongue ice 22 of the anchor. Several anchor plates are distributed along the wall in position to engage the flange 14 of the sill to securely anchor the front edge of the sill in place. An upstanding llange 28 is formed at the rear of the anchor plate 18 which extends parallel to the longitudinal axis of the sill and engages' the sill at the central portion thereof to assist in supporting the sill in the inclined position. A drip flange 30 is formed at the lower end of the ilange 14 in order to carry moisture outwardly of the face of the wall.

As shown in Fig. 2, the ilange 16 at the rear of the sill is used to position the frame 32 of a metal sash. A pivoted sash 34 is arranged to make a double point contact with the frame 32.

In Fig. l, there is shown the arrangement of partsv of a joint for a sectional sill. As shown in Fig. 4, each of the sections 10 are separated and rest upon a gutter bar 36. The gutter bar has a length equal to the width of the sill, and is tapered in construction so that the upper walls of the gutter rest against or supports the lower face of the sill in its inclined position. A cover plate 38 is mounted above the joint between the sill sections, and is fastened in position to the gutter bar by means of a screw 40 which is threaded into an opening 42 in the central portion of the gutter bar. The front end of the gutter bar, see Fig. 5, is raised to provide a tongue 44 to enter the recess 26 behind the llanges 14 of the two sill sections.

As shown in Fig. 4, gutters 46 are formed at each side of a central rib of the gutter bar. An upstanding flange 48 extends across the rear of the gutter bar. Any water which may penetrate into the gutter bar through the joint collects in gutters 46. The upstanding ilange 48 extends above the tongue 44 so that water flow over the tongue to the outside of the wall. The flange 48 prevents water from passing from the gutter bar to the rear of the masonry Wall. As shown in Figs. l and 3, hooked llanges 50 and 52 are formed on the ilanged ends of the cover plate 38 to hook over the flanges 30 and 16 at the front and rear of the sill respectively to securely hild the cover plate in position when the screw 40 is in ace.

With this construction, it will be seen that the gutter bar securely supports each section of the sill and joins the sections together. At the same time, it positions the sill in inclined position on top of the wall. Any moisture that penetrates under the cover plate will drip into the gutter bar and then pass to the front of the masonry wall to be disposed of.

Mortar may be used on top of the wall to help support the sill, but it will be seen that the anchors 18 and gutter bar 36 also acts to support and position the sill.

The preferred form of the invention having been thus described, what is claimed as new is:

l. An aluminum window sill constructed for mounting in a masonry structure comprising a masonry wall, a wide aluminum sill plate resting upon the top of the Wall at the bottom of a window opening, a downwardly projecting llange at the front edge of the plate abutting against the outside face of the wall, an upwardly projecting window frame sealing flange at the back edge of the sill plate, an integral rearwardly projecting lip on the back side of the downwardly projecting flange which is spaced below the bottom of the sill plate and rests upon the top of the wall to provide a recess between the bottom of the plate and the lip, and a series of anchors mounted in the wall having a plate resting on the top of the wall under the sill with an upwardly offset tongue projecting into said recess in the sill plate.

2. The sill construction delined in claim l in which the anchor extends a substantial distance down into the wall, and has a flange near its lower end by which the anchor is locked against upward movement when it is built into the wall.

3. The sill construction defined in claim l in which an upstanding flange is formed along the back edge of the anchor and extends longitudinally of the sill to engage the bottom of the sill to support the central portion of the sill and position the back of the sill at a higher elevation than the front of the sill.

4. A jointed sill construction for mounting in a masonryf wall' comprising" a masonry wall, a sill made up, in sections mounted on top,l of the. wall, at.v the.

plate resting-10m top of the wall under each sil1`sectiony with .a tongueprojecting into a recess of the sill section,

agutter ba-rV of av length substantially equal-to thefwidth ofthe sill`positioned under each jointbetween. the sill seotionsto support the ends 7of the sill sections, said g-utter bar, having a gutter to conduct water to the outside ofthe wall, and a. cover plate. over each-joint ofthe: sill sections clamped to the gutter'bar 5. The-sill construction defined-.in-clairn 4 inwvhich an upstandingiflange is forrnedialong the back edge ofrthe anchor platerrestirtg on top of. the` wall and extends lon-` gitudinally alongthe,sillfandengages the bottom of the siILto support a mid'portion of the, sill to' position the blcklclmfihe sill. at a higher elevationthan the frontI of t es 6'. The sill construction deiined'inclairn/Jrr in which the gutter bar. has a rasedtongue along the. front edge,

thereof which extends into the recess at the back of the sill front iangesat their joint. t

7. The sill construction defined in claim 4 in which the front and rear edges of the joint cover plate are provided with hooked anges to hook over the edges of the flanges at each side of the sill.

8. The sill constructionsdened in claim 4 in which a. wall is formed at the back of the gutter bar to prevent water from owingto the'insde of the wall.

References :Cited inthe tile of this patent UNITED STATES PATENTS- Number Name Date 819,041 Corbett May 1, 1906 855,696 Corbett June 4, 1907 907,747 Corbett Dec. 29, 1908 1,091,770 Von Schlegell Mar. 31, 1914 1,366,470 Lampert Ian. 25,1921

1,520,826 Knapp Dec..3.0, 1924 1,901,074 BarclayA Mar.,14, 1933 2,250,951 Guignon,.]r Ju1y29, 194].

2,554,779 Goodwin May 29, 1951 FOREIGN PATENTSV Number Country Date 286,041 GreatB'ritain Mar. 1, 1928 

